One of the most visually distinctive cars on show at Frankfurt on the opening day of the world’s most important car show was Peugeot’s BB1 concept car. Looks aside though, the inbuilt practicality of a car just 2.5 metres long and capable of seating four people indicates how the design freedom afforded by electric cars opens the way for reinventing the automobile in every way: architecture, style, interior design, interior space and connectivity.